“Cold Days” is the fourteenth installment in Jim Butcher’s acclaimed Dresden Files series. In this urban fantasy novel, Harry Dresden, the protagonist, returns from the dead, appointed as the Winter Knight to Mab, the Queen of Air and Darkness. Entrusted with seemingly impossible tasks and surrounded by old friends and new enemies, Dresden must navigate a treacherous landscape of faerie politics and supernatural dangers. This book further explores themes of morality, loyalty, and personal sacrifice while delving deep into the arcane. The narrative combines magical realism, action-packed sequences, and character-driven drama to create a compelling read that both stands alone and adds complexity to the overarching series.